In the past few years there has been interest in using response surface techniques to create surrogates to computer simulations. Response surface techniques allow detection and correction of errors as well as filtering out numerical noise, but these techniques introduce additional modeling errors. Methods of reducing both noise and modeling errors are explored. It is also demonstrated that repairing designs with large errors is preferable to eliminating these designs from consideration. Response surface approximations for a high-speed civil transport wing weight equation created from the results of a large number of structural optimizations are used for demonstration. It is shown that the statistical tools available for response surface techniques are effective for error detection and for filtering out noise. Once the noise is reduced, modeling errors can also be reduced by increasing the order of the approximation.


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    Title :

    Response surface approximations: Noise, error repair, and modeling errors


    Additional title:

    Response-Surface-Verfahren: Datenstreuung und Fehlerkorrektur durch Ausgleichsrechnung


    Contributors:
    Papila, M. (author) / Haftka, R.T. (author)

    Published in:

    AIAA Journal ; 38 , 12 ; 2336-2343


    Publication date :

    2000


    Size :

    8 Seiten, 8 Bilder, 5 Tabellen, 16 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English